diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c | 60 |
1 files changed, 52 insertions, 8 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c index 3a7a44bb3c60..aa791dbc3066 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c @@ -788,14 +788,40 @@ static u32 iwl_mvm_find_ie_offset(u8 *beacon, u8 eid, u32 frame_size) return ie - beacon; } -u8 iwl_mvm_mac_ctxt_get_lowest_rate(struct ieee80211_tx_info *info, - struct ieee80211_vif *vif) +static u8 iwl_mvm_mac_ctxt_get_lowest_rate(struct iwl_mvm *mvm, + struct ieee80211_tx_info *info, + struct ieee80211_vif *vif) { + struct ieee80211_supported_band *sband; + unsigned long basic = vif->bss_conf.basic_rates; + u16 lowest_cck = IWL_RATE_COUNT, lowest_ofdm = IWL_RATE_COUNT; u8 rate; - if (info->band == NL80211_BAND_2GHZ && !vif->p2p) - rate = IWL_FIRST_CCK_RATE; - else - rate = IWL_FIRST_OFDM_RATE; + u32 i; + + sband = mvm->hw->wiphy->bands[info->band]; + for_each_set_bit(i, &basic, BITS_PER_LONG) { + u16 hw = sband->bitrates[i].hw_value; + + if (hw >= IWL_FIRST_OFDM_RATE) { + if (lowest_ofdm > hw) + lowest_ofdm = hw; + } else if (lowest_cck > hw) { + lowest_cck = hw; + } + } + + if (info->band == NL80211_BAND_2GHZ && !vif->p2p) { + if (lowest_cck != IWL_RATE_COUNT) + rate = lowest_cck; + else if (lowest_ofdm != IWL_RATE_COUNT) + rate = lowest_ofdm; + else + rate = IWL_RATE_1M_INDEX; + } else if (lowest_ofdm != IWL_RATE_COUNT) { + rate = lowest_ofdm; + } else { + rate = IWL_RATE_6M_INDEX; + } return rate; } @@ -812,6 +838,24 @@ u16 iwl_mvm_mac_ctxt_get_beacon_flags(const struct iwl_fw *fw, u8 rate_idx) return flags; } +u8 iwl_mvm_mac_ctxt_get_beacon_rate(struct iwl_mvm *mvm, + struct ieee80211_tx_info *info, + struct ieee80211_vif *vif) +{ + struct ieee80211_supported_band *sband = + mvm->hw->wiphy->bands[info->band]; + u32 legacy = vif->bss_conf.beacon_tx_rate.control[info->band].legacy; + + /* if beacon rate was configured try using it */ + if (hweight32(legacy) == 1) { + u32 rate = ffs(legacy) - 1; + + return sband->bitrates[rate].hw_value; + } + + return iwl_mvm_mac_ctxt_get_lowest_rate(mvm, info, vif); +} + static void iwl_mvm_mac_ctxt_set_tx(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct sk_buff *beacon, @@ -842,7 +886,7 @@ static void iwl_mvm_mac_ctxt_set_tx(struct iwl_mvm *mvm, cpu_to_le32(BIT(mvm->mgmt_last_antenna_idx) << RATE_MCS_ANT_POS); - rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif); + rate = iwl_mvm_mac_ctxt_get_beacon_rate(mvm, info, vif); tx->rate_n_flags |= cpu_to_le32(iwl_mvm_mac80211_idx_to_hwrate(mvm->fw, rate)); @@ -926,7 +970,7 @@ static int iwl_mvm_mac_ctxt_send_beacon_v9(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); struct ieee80211_tx_info *info = IEEE80211_SKB_CB(beacon); struct iwl_mac_beacon_cmd beacon_cmd = {}; - u8 rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif); + u8 rate = iwl_mvm_mac_ctxt_get_beacon_rate(mvm, info, vif); u16 flags; struct ieee80211_chanctx_conf *ctx; int channel; |